Method for packaging filamentary material



Feb. 9 1954 w Aw 2,668,402

METHOD F OR PACKAGING FILAMENTARY MATERIAL Filed May 26, 1947 INVENTOR.

8 elm/5M5 a. WHVTLAW Patented Feb. 9, 1954 METHOD FOR PACKAGINGFILAMENTARY MATERIAL Graeme TG; Whytlaw; Swarthinore; Pa., assignor toAmerican Viscose Corporation, Del., amorporationof Delaware :4

Wilmington,

Application May 26, 1947', sea-s1 No. 756,550

This invention has for its principal object to prdvideiimprovements' inmethods for packaging filamentary; material thatiovercome objectionsantli'disadvantagesifound in the prior art;

Anoth'elfiobj ect of the invention is to provide simplified methods forapplying protective "00V- 'eririg 'members to hollow bodies offilamentary material that are economical and that result in improvedfilamentary material packages. 1 Other: objects and advantages of theinvention will be;."apparent'- fromthe following description andaccompanying'drawing.

ligation" 'Iifl i i l =Figur'e 1 is an elevational view of a coveringas' -first' applied to a support therefor.

Figure '2- is an elevational view of the covering-'on the'isupport"after the upper portion of the covering hastbeen rearranged. -Figure3is'an'elevational view with parts shown in seetioniof the support andcovering apparatus with a body of filamentary. materialxplaced thfom, oI Figur 4 is an eleyational view showing an intermediate step'ofapplying the covering'to the bodyof filamentary material.

'Figure'tl is an elevational View showing the cgyering as applied to thefilamentary material Inithe' drawing; which isillustrati've oftheintiih' artss ib se lfigure 6 is 1 a perspective -view showing "afila ary'package em bodying'this invention. M lfn accordancewith thepractice of the present invention 1a; coyering member first formed aref'permeablepaper like material having a goo wet. strength is-applied toa hollow or an n ar package ofj yarn, thread or thelike'ffilaaryf'material such as a ray'oncake by assnatural fibers suchas wood, cotton; hemp'flinen,

he sheet material in tubular form through 2 Claims. (01. sa -=4) 2. vabacaf-or' 'froriiartificial 'fibers-such as cellulose acetate orregenerated cellulosic fibers that'zare obtainable rro'm viscose orcuprammonium cellulosic solutions, from about-r s -inch to one inch orlonger, havin'g high' wet strengths may beused. Permeable paper havingincreased wet strength as the result of resin impregnation during orsub-- sequent to its formation into a sheet is also suitable. Paper ofthe lattertype'may' be formed from fibers either of paper makinglength-or greater than normal papermaking length and may be impregnatedwith urea formaldehyde, phenol-formaldehyde, melamine formaldehyderesins or with solutions'of cellulose 'or'cellulose derivatives, suchas'cellul'ose acetate,-'-viscose or the dike. -A1sopaper-like sheetmaterialsmay be'used that areof a 'thin-matt-like constructioncontaining? potentially adhesive fibersf'admixed with non-adhesivefiber's and that have been antivated tobond the fiberStogether toproduce a paper-like material ofhigh-strength. Permeable' 'thin fibrou'smatt-like constructions having improved wet strength as the result ofincreased binding, brought about by the partial parchrnentizin action ofdilute solutions of strong chemicals suchas sulphuricacid or causticsoda or as'a result of impregnating with resin,-viscose orother-permeable binding solutions during or subsequent-to theformation-of the sheet are also suitable. l

In practicing the invention the paper-like sheet material comprise thecovering member is first formedinto a tube by overlapping its lateraledges; TThe Y overlapping portions may gbe secured b adhesive materialOnsuflicient overlap may be provided "so that additional securing meansis' not necessary; The tubular sheet ma terial is thenp'assed throughthe inside of the filamehtary'bod-y; As the tubular sheet materialmustbe of greater periphery than the outside. of the filamentary body inorder for the sheetmaterial to be applied to the outside ofthermamentary body, provision must be made for takmg care of the excesssheet material that will be on'the inside of the filamentary body. -"Itis desirable that the sheet material comprising the covering memberclosely contact the filamentary material throughout both the inner'andouter walls thereof'inorder to protect the filamentary material andavoid damage to the covering memberi A lathe present inventiontheportionof the covering member that contacts the inner wall ofothe bodyof filamentarymaterial is twisted to form folded, overlapping portionsthat extend" in helical'paths'andthe folded portions are positionedagainst the inner wall of the filamentary body. It is contemplated thatthe coverin member will be passed through the filamentary body and anend portion of the covering member will be drawn over the means forsupporting the filamentary body. The other free end portion of thecovering member will be twisted about the axis of the filamentary bodyto form folded or overlapping portions that extend in helical paths andin effect reduce the diameter of the portion of the covering memberadjacent the inner wall of the filamentary body to approximately theinner diameter of the filamentary body. The free end portion of thecovering member is opened and partly untwisted and is then drawn overthe end of the filamentary body and positioned against the outer wall ofthe filamentary body. Theother end portion of the covering member isthen drawn over the other end of the filamentary body in overlappingrelation withthe first end portion of the covering member. Theoverlapping end portions may be twisted relative to one another on thefilamentary body to tightly place the covering member against thefilamentary material. With this procedure the covering member closelycontacts all portions of the filamentary body and retains its positionthereon during liquid treatment and manipulation of the filamentarybody. Due to the folded overlapping portions of the cover member againstthe inner wall of the filamentary body the covering member is reinforcedin this region.

Referring to the drawing in which is illustrated a formof apparatus withwhich this invention may be carried out and with respect thereto thevarious steps comprising applicants method are shown, referencecharacter I indicates generally a covering member in tubular form placedin its initial. position on the apparatus. The apparatus comprises acircular plate-like member 6 mounted on the vertical standard 1supported in the'base-like member 8 and braced by the bracket member 9.The plate-like member has a depending portion i that rests on thebracket member 8 so that the plate member 6 is supported by both thebracket and the standard. The plate member 6' may be either fixed to thestandard 1 or may be revolva-ble thereon. Positioned above theplate-like member 6 on the standard I are the cover member gripping andtwistin means comprising the-members l2 and I3.-

Asshown in Figure 2, after the covering memher in tubular form hasbeenpositioned in the apparatus the upper portion is manually gatheredtoward the standard and is positioned between the members 12 and i=3.The details of the cover gripping and twisting means are shown inFigures 2 and: 5. They comprise a collar member l l fixed: to thestandard and on which is rotatably mounted themember [2 that is providedwith a conical shaped portion. The member 13 is rotatably and slidablymounted on the standard I above the member l2. The member I3 is providedwith a conical shaped recessed portion that is complementary to theconical portion on the member 12. The member l3 may be rotated andraised on the standard by means of the handle member M.

When the upper portion of the covering member is gathered in it ispositioned between the members 12 and 13. The covering member is grippedbetween the conical portions of the members l2 and I3, and on rotatingthe member It the covering member is twisted and folded and overlappingportions are formed that extend in 4 helical paths. Also the diameter ofthe tubular member above the plate member 6 is reduced as shown in thedrawing in Figure 2.

A filamentary body, such as a rayon cake 5 is then placed over thecovering member and supported on the plate member 6 as shown in Figure3. The upper portion 4" of the covering member is then withdrawn frombetween the members i3 and i2 and is opened outwardly and partlyuntwisted without disturbing the folded overlapping portions of the midportion 3 of the covering member. The upper portion 4 of the coveringmember is then drawn over the outer wall of'the filamentary body asshown in Figure 4 Thereafter the lower portion of the covering member 2is drawn upwardly over the outer wall of thefilamentary body andpositioned in overlapping relation against the other end of the coveringmember. The end portions of the covering member may be twisted aroundthe filamentary body to tighten the covering member on the filamentarybody.

The resulting package of filamentary material is as shown in Figure 6with the covering member closely engaging all portions of. thefilamenitary body; As shown the portion 3 of the cov ering member inengagement with the innerwall of the filamentary body is folded oroverlapped in helical paths which in effect reduces the periphery ofthis portion of the covering member. The folded portion reinforces thecovering member'in this region and gives it increased resistance" totearing and abrasion. 5

While preferredembodiments of the invention have been shown anddescribed; his to be understood th'at the description hereinabove isillustrative' only and that changes and variationsmay be made withoutdeparting from. the spirit. and scope of the invention as defined in theappended claims;

I claim:

l.- The method of applying a covering member to an annular body offilamentary material having an inner wall and an outer wall comprisingpositioning a covering member of paper-like sheet material in tubularform in the body of filamentary material with the end portions of thecovering member extending beyond the body of filamentary material,gripping the tubular sheet material near one end, twisting the sheetmaterial in a region adjacent the gripped end and the portion adjacentthe inner wall of the body of filamentary material to form overlappingportions therein that extend in substantially helical paths, positioningthe end portions of the covering member in overlapping relation againstthe outer wall of the body of filamentary material and twisting theoverlapping end portions relative to one another to tightly place thecovering member against the filamentary material.

2. The method of applying a covering member to an annular body offilamentary material having an inner wall and an outer wall comprisingsupporting a tubular covering member of paperlike sheet material in agenerally vertical position with its lower end portion in expandedcondition, the expanded tubular member having a periphery greater thanthe outer periphery of the body to be covered, seizing the upper endportion and gathering it in, imparting relative rotation between theupper and lower end portions to twist the intermediate portion above thelower end portion and in effect reduce the diameter of the intermediateportion to approximately the inner diameter of the body, then passing 5the annular body down over the upper end portion into a position aroundthe intermediate portion of the member, untwisting and enlarging theupper end portion to cause the intermediate portion to closely contactthe inner wall of the body and positioning the end portions of thecovering member in overlapping relation against the outer wall of thebody of filamentary material.

GRAEME G. WHYTLAW.

References Cited in the file of this patent UNITED STATES PATENTS NumberNumber 6 Name Date Angier Dec. 4, 1923 Scherner July 8, 1924 ChaflinFeb. 19, 1935 Campbell Apr. 5, 1938 Shepard June 14, 1938 Ringler Aug.8, 1939 Bensel May 7, 1940 Tuthill Jan. 20, 1945 Decker, JR., et a1.Aug. 14, 1945 Moritz Apr. 8, 1947 McDermott Feb. 24, 1948 Barnett Mar.23, 1948 OMalley Feb. 19, 1952

